| Regimental number | 437 |
| Place of birth | Waratah, Tasmania |
| Religion | Roman Catholic |
| Occupation | Batteryman |
| Address | Waratah, Tasmania |
| Marital status | Single |
| Age at embarkation | 20 |
| Height | 5' 8" |
| Weight | 157 lbs |
| Next of kin | Father, John Fagan, Waratah, Tasmania |
| Previous military service | Trainee, 1894 quota. |
| Enlistment date | |
| Place of enlistment | Pontville, Tasmania |
| Rank on enlistment | Lance Corporal |
| Unit name | 12th Battalion, D Company |
| AWM Embarkation Roll number | 23/29/1 |
| Embarkation details | Unit embarked from Hobart, Tasmania, on board Transport A2 Geelong on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 12th Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brother: 5735 Sergeant Thomas Elton FAGAN MM, 51st Bn, died of wounds, 9 June 1917. |
| Other details |
War service: Egypt, Gallipoli Invalided to Australia from Suez on board HT 'Beltana', 17 September 1915 (nervous debility). Medals: 1914-15 Star, British War Medal, Victory Medal |
| Miscellaneous details | See R437 John Athol FAGAN for second period of service. |
| Sources | NAA: B2455, FAGAN John Athol |